TaylorDTRE Posted July 26, 2020 Share Posted July 26, 2020 I thought it would be best to introduce myself on here, I have just bought my first bike, being a DT125RE 2006.I’m happy with the bike although it will need a bit of TLC, maybe even a top end soon as it’s on 23,000 KM, I’m going to get a compression tester and find out though. I’m thinking of even doing a full rebuild to get the bike looking brand new as I do have a soft spot for the bike especially being my first. If I go down this road I think I’ll buy an Athena 170 top end kit and rebuild the bottom end. We’ll see what the finances are saying in a couple of months. First things I did was flush out the 2 stroke oil, coolant and gear oil, they are now all topped up to the service manual specification, I ran through what was left in the tank and the bike was running a bit odd at especially high revs, by odd I mean bogging down. I have put some ‘new’ petrol in it (been sat in a sealed container for a little bit) and took it back out and started up first try on e start with choke on, revved it a little, choke off and off I went with no problems, it was nice and nippy... until 60-65mph, despite doing the usual snip the green and black cable and attaching to ground it didn’t seem as though there was any difference, maybe my ground was just no good, I’m not exactly the best with electrics so was a bit uncertain. I’ll retry that tomorrow and hopefully I’ll notice it then. The bike has a Big one complete system, stock jets, stock air filter and snorkel. I’m wondering whether an aftermarket snorkel and air filter would be worth it. I think I’m going to up the main jet to 230 to allow for the more free flowing pipe and the reed valves I will be doing hopefully soon, maybe that will help if I still run into issues with high revs too though I didn’t have any issues earlier. Any tips with the DT would be greatly appreciated, if anyone has any pics of their ground on the green and black I would love to see them so I can have a bit more confidence in my ground. I will hopefully be ready to ride completely legally in a couple of months and hopefully the bike is running crisp by then. I live near Peterborough so if there is any local riders that would be up for a bit of greenlaning I certainly would. Link to comment Share on other sites More sharing options...
jimmy Posted July 26, 2020 Share Posted July 26, 2020 Welcome to the forum matey and great intro 1 Link to comment Share on other sites More sharing options...
Moderator drewpy Posted July 26, 2020 Moderator Share Posted July 26, 2020 to the forum best ask tech questions in the relevant section, then you may get a better response Link to comment Share on other sites More sharing options...
blackhat250 Posted July 26, 2020 Share Posted July 26, 2020 gREAT INTRO,,, airhead know about this model ,, Link to comment Share on other sites More sharing options...
finnerz89 Posted July 28, 2020 Share Posted July 28, 2020 Same engine as my DT. It's common to remove the snorkel but it won't get you anywhere power wise, just more induction noise. As regards jetting, I ran a Big one system on mine and more recently a DEP with stock jetting and that was fine. I'd recommend returning the air screw to standard setting and see how it runs then. I think it's 1 and a 1/4 turns out from lightly seated. It would be worth checking the powervalve alignment too. For the earth of the green/black wire I crimped a ring terminal on it then bolted it to the radiator frame. Mine tops out around 75mph with a 1 tooth smaller front sprocket. 1 Link to comment Share on other sites More sharing options...
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